#define _CRT_SECURE_NO_WARNINGS 1

#include<iostream>
using namespace std;

double Division(int a, int b)
{
	if (b == 0)
		throw "Division by zero condition!";
	else
		return ((double)a / (double)b);
}
void Func()
{
	int len, time;
	cin >> len >> time;
	cout << Division(len, time) << endl;
}
int main()
{
	try {
		Func();
	}
	catch (const char* errmsg)
		{
			cout << errmsg << endl;
		}
		catch (...) {
			cout << "unkown exception" << endl;
		}
	return 0;
}